Today, I’m shooting the last of the pick-ups for “Dead Air”. It’s about a dozen shots. Here the one I thought was the most fun. They needed a shot of what appears to be blood flow.
↑ A snippet of the footage.
Here’s the “home-brew” way I did it. Into a good quality, clear freezer bag goes:
_ 25 ml red food dye
_ 250 ml of water
_ 150 ml of rice bran oil.
Use a good quality bag because if any of the dye gets out, it’ll ruin just about anything it touches. Also, you can use just about any oil – I chose rice bran oil mostly because I like the color. Get as much air out of the bag as you can. The bubbles you see are from the air but also a result of the old adage, “oil and water don’t mix”. To get a more convincing look, I folded the bag with each half getting part of the mixture. This gave it depth.
Once that was done, shake up the mixture a bit to get the oil to breakdown into smaller drops. Then slosh mixture from one side of the bag to the other. (If you have a Food Saver, try using that to get all the air out. You’ll need to then make your oil/water mix more 50/50.)
I backlit the bag using a LIte-Panel – if you front light it, you’ll likely get reflections on the bag. In this example, I put the Lite-Panel on a table. Over it I put a clear plastic box, then a sheet of 250 diffusion (to diffuse the LED lights), then the bag of “blood”.
On the lens goes a 10x macro lens adapter. The camera was set to ƒ2.0 and the shutter ranged from 1/48 (180°) to 1/250 (35°).
Comments (0)